801c438304
assignments to the literal values it would have returned.
The concept of set_rcvar() was nice in theory, but the forks
it creates are a drag on the startup process, which is especially
noticeable on slower systems, such as embedded ones.
During the discussion on freebsd-rc@ a preference was expressed for
using ${name}_enable instead of the literal values. However the
code portability concept doesn't really apply since there are so
many other places where the literal name has to be searched for
and replaced. Also, using the literal value is also a tiny bit
faster than dereferencing the variables, and every little bit helps.
74 lines
1.3 KiB
Bash
Executable File
74 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: cleanvar
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# REQUIRE: FILESYSTEMS var
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. /etc/rc.subr
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name="cleanvar"
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rcvar="cleanvar_enable"
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start_precmd="${name}_prestart"
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start_cmd="${name}_start"
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stop_cmd=":"
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extra_commands="reload"
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reload_cmd="${name}_start"
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purgedir()
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{
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local dir file
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if [ $# -eq 0 ]; then
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purgedir .
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else
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for dir
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do
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(
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cd "$dir" && for file in .* *
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do
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# Skip over logging sockets
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[ -S "$file" -a "$file" = "log" ] && continue
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[ -S "$file" -a "$file" = "logpriv" ] && continue
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[ ."$file" = .. -o ."$file" = ... ] && continue
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if [ -d "$file" -a ! -L "$file" ]
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then
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purgedir "$file"
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else
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rm -f -- "$file"
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fi
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done
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)
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done
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fi
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}
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cleanvar_prestart()
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{
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# These files must be removed only the first time this script is run
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# on boot.
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#
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rm -f /var/run/clean_var /var/spool/lock/clean_var
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}
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cleanvar_start ()
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{
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if [ -d /var/run -a ! -f /var/run/clean_var ]; then
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purgedir /var/run
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# And an initial utmpx active session file
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(cd /var/run && cp /dev/null utx.active && chmod 644 utx.active)
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>/var/run/clean_var
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fi
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if [ -d /var/spool/lock -a ! -f /var/spool/lock/clean_var ]; then
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purgedir /var/spool/lock
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>/var/spool/lock/clean_var
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fi
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rm -rf /var/spool/uucp/.Temp/*
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}
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load_rc_config $name
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run_rc_command "$1"
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